Radial drilling of round hole sidewall

CN122400619APending Publication Date: 2026-07-17CHINA ERZHONG GRP DEYANG HEAVY IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA ERZHONG GRP DEYANG HEAVY IND
Filing Date
2026-06-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies suffer from low positioning and drilling feed accuracy, cumbersome operation, safety hazards, and low efficiency when machining radial holes on the sidewalls of large circular holes.

Method used

A radial drilling auxiliary device for the sidewall of a circular hole is adopted, including a guide sleeve, a pre-positioning rod, a feed shaft and a feed handle. By setting equidistant positioning bars and a ratchet structure, the pneumatic drill can achieve precise positioning and stable feed.

Benefits of technology

It improves the machining accuracy and safety of radial holes, simplifies the operation process, saves manpower, and increases machining efficiency.

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Abstract

本发明机械加工技术领域，具体涉及一种圆孔侧壁径向钻孔辅助装置,主要用于与风钻配合以实现在圆孔侧壁上使用钻头加工径向孔，其包括导向套和垂直连接在其一端的预定位杆，导向套内设有进给轴；预定位杆远离导向套一侧的两端对称设有垂直于预定位杆和进给轴的定位条；导向套上开设有长度沿其轴向且与导向套内腔相连通的第一导向槽，第一导向槽内设有与进给轴连接的连杆；还包括垂直于进给轴的轴线的第一枢轴以及一端通过第一枢轴与导向套枢接的进给手柄，进给手柄上设有的条形通孔，连杆滑动连接在条形通孔内。本发明用于在大型圆孔内侧加工径向孔，保证钻头沿大型圆孔的径向布置，方便快捷的实现风钻定位和钻进作业，提高径向孔的加工精度。
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